If it helps I do see this entry when i grep 'fail' in my kern.log: [drm] MTRR allocation failed. Graphics performance may suffer. and: init: failsafe main process (791) killed by TERM signal
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KrisJun 17 '12 at 2:09

If you could summarize the important information on that page in your own words your answer (by editing your answer), while continuing to provide the link for reference, that would make this answer even better.
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Eliah KaganJun 30 '12 at 12:26